Patents Assigned to Zellform Gesellschaft m.B.H.
  • Process for producing workpieces and molded pieces out of cellulose and/or cellulose-containing fiber material
    Patent number: 6379594
    Abstract: A process for producing a work piece includes providing raw material which is cellulose-containing and fibrous, which is not any part of a tree, and which is selected from the group consisting of, crude plant fibers, pure cellulose, waste paper, and waste cardboard; adding water to the raw material; finely chopping the raw material in a machine by continuously grinding the raw material with a total energy expenditure of at least 0.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: April 30, 2002
    Assignee: Zellform Gesellschaft m.B.H.
    Inventors: Horst Döpfner, Martin Ernegg, Robert Bramsteidl